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February 1st, 2026 :: 1:18 pm CST   

Local Weather Report for
Decatur
Illinois, United States

 Current Decatur Weather Conditions Updated February 1st at 11:54 am 
Temperature:19°F Dew Point:9°F
Barometer:30.33 inHg Wind:N 19 Mph
Humidity:60.7% Visibility:0M
 
 Decatur Weather Forecast Summary  
 
Today
Feb 1st
Monday
Feb 2nd
Tuesday
Feb 3rd
Wednesday
Feb 4th
Thursday
Feb 5th
Cloudy Cloudy Cloudy Mix of Cloud and Sun Cloudy
23°F
30°F
12°F
30°F
16°F
26°F
11°F
32°F
12°F
 
 Decatur Detailed Weather Forecast  
 
Sunday, February 1st, 2026
Afternoon Temperature: 16°F
Sunny with cloudy periods.
Evening Temperature: 18°F
A mix of cloudy and clear skies.
Monday, February 2nd, 2026
Overnight Temperature: 14°F
Clear with cloudy periods.
Morning Temperature: 25°F
A mix of cloud and sun.
Afternoon Temperature: 22°F
Cloudy.
Evening Temperature: 20°F
Cloudy.
Tuesday, February 3rd, 2026
Overnight Temperature: 20°F
Cloudy.
Morning Temperature: 27°F
Cloudy. Windy at times.
Afternoon Temperature: 20°F
Sunny.
Evening Temperature: 18°F
Clear.
Wednesday, February 4th, 2026
Overnight Temperature: 12°F
Mostly clear.
Morning Temperature: 21°F
A mix of cloud and sun.
Afternoon Temperature: 16°F
Sunny.
Evening Temperature: 12°F
Clear.
Thursday, February 5th, 2026
Overnight Temperature: 13°F
Cloudy.
Morning Temperature: 26°F
Sunny.
Afternoon Temperature: 25°F
Sunny.
Evening Temperature: 27°F
Cloudy. Windy at times.
Friday, February 6th, 2026
Overnight Temperature: 31°F
Cloudy. Windy at times.
Morning Temperature: 36°F
Cloudy. Windy.
Afternoon Temperature: 27°F
Cloudy. Windy.
Evening Temperature: 18°F
Clear. Windy.
Saturday, February 7th, 2026
Overnight Temperature: 11°F
Clear. Windy at times.
Morning Temperature: 16°F
Sunny. Windy at times.
Afternoon Temperature: 17°F
Sunny.
Evening Temperature: 16°F
A mix of cloudy and clear skies.
Sunday, February 8th, 2026
Overnight Temperature: 16°F
Cloudy.
Morning Temperature: 27°F
Cloudy. Windy at times.
Afternoon Temperature: 28°F
A mix of cloud and sun.
Evening Temperature: 26°F
A mix of cloudy and clear skies.
Monday, February 9th, 2026
Overnight Temperature: 22°F
Cloudy.
Morning Temperature: 24°F
Cloudy. Windy at times.
Afternoon Temperature: 21°F
Cloudy. Windy at times.
Evening Temperature: 19°F
Cloudy. Windy at times.





 

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11:55 AM  19°F
Overcast
 
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11:53 AM  18°F
 
 
Lincoln, IL 
11:55 AM  21°F
Overcast
 
Urbana, IL 
11:53 AM  18°F
 

 
This WeatherCity Weather Forecast for Decatur, Illinois, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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